Class 8 (Science Assignment)

 

Solve the following numerical problems on force and motion:

1.     A force of 50 N acts on a body of mass 10 kg. Find the acceleration produced.

2.     A body of mass 5 kg is accelerated at 2 m/s². Find the force applied.

3.     A car increases its speed from 10 m/s to 30 m/s in 10 s. Find its acceleration.

4.     A body moving with uniform speed covers 200 m in 20 s. Find its speed.

5.     Two forces of 40 N and 25 N act on a body in the same direction. Find the net force.

6.     Two forces of 60 N and 20 N act in opposite directions. Find the resultant force.

7.     A force of 100 N produces an acceleration of 5 m/s². Find the mass of the body.

8.     A cyclist moves at 5 m/s for 2 minutes. Find the distance covered.

9.     A body initially at rest attains a speed of 20 m/s in 10 s. Find its acceleration.

       10. A force of 30 N moves a box 10 m. Find the work done.